South TX Scout Day: Pitcher Data Dive
October 17, 2025
On Saturday, October 11th, the PB Texas staff traveled to Calallen High School in Corpus Christi, TX, to host the South Texas Scout Day.
Nearly 100 players made their way to Calallen HS this past weekend and participated in a pro-style workout, gathering unrivaled access to data through our state-of-the-art tech partners, as well as in-depth scouting analysis from our Prep Baseball Texas staff.
We have already released a Statistical Analysis for the event, that highlighted the top statistical performers, as well as our scouting takeaways on the event's top performers. We also highlighted some of the top positional players within this Data Dive story.
Today, we will be looking at the top measurable data performers from the event, found below.
Trackman
FASTBALL
VELOCITY (MAX)
Rank
Name
State
School
Class
Pos
Velocity (max)
1
John Reyna
TX
Psja Early College H S
2027
RHP
89.2 mph
2
jaime cordova
TX
La Joya Palmview
2026
RHP
88.2 mph
3
Dylan Arriaga
TX
Sinton
2027
LHP
87.8 mph
4
Joshua Benitez
TX
w.b Ray Texan
2027
RHP
87.1 mph
5
Diego Castillo
TX
Weslaco High School
2026
RHP
86.1 mph
SPIN RATE (AVG.)
Rank
Name
State
School
Class
Pos
Spin Rate (avg)
1
Aaron Castillo
TX
WB Ray HS Corpus Christi, TX
2028
C
2208 rpm
2
John Reyna
TX
Psja Early College H S
2027
RHP
2157 rpm
3
Daxton Williams
TX
London
2028
1B
2129 rpm
4
jaime cordova
TX
La Joya Palmview
2026
RHP
2037 rpm
5
Julian Colsa
TX
Veterans Memorial High School
2026
OF
1986 rpm
Spin Rate: This metric calculates the rate of spin on the baseball as it leaves the pitcher’s hand, measured in revolutions per minute (rpm). Historical data shows that high-spin fastballs lessen the impact of gravity, allowing for more ‘rise’ (or less fall, in other words) as it carries through the zone. Low-spin fastballs typically indicate the pitch has greater horizontal action, often making it tougher to square up, but generally easier to make contact with, leading to more ground balls, while high-spin fastballs show a correlation with swings and misses.
INDUCED VERTICAL BREAK (AVG.)
Rank
Name
State
School
Class
Pos
IVB (avg)
1
Joshua Benitez
TX
w.b Ray Texan
2027
RHP
19.1 in
2
Cedric Smith
TX
Calallen H S
2028
RHP
17.6 in
3
Julian Colsa
TX
Veterans Memorial High School
2026
OF
16.5 in
4
jaime cordova
TX
La Joya Palmview
2026
RHP
15.7 in
5
Kaileb Gogo
TX
Calallen H S
2029
LHP
15.5 in
Induced Vertical Break: Used in short form as "IVB," this metric is most important on fastballs for creating rise and on curveballs for creating depth – it can also have some use when measuring sliders and cutters as well. Sliders tend to be closer to zero inches while cutters are generally between 5 and 15 inches. Usually fastballs and curveballs with large IVB have higher spin efficiencies as well. Sliders generally have very little (closer to zero) IVB and very low spin efficiencies. You could also categorize IVB into spin rate as this is part of the “useful movement” you’re looking for. IVB is also a huge part of vertical approach angle.
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Mason Colsa
TX
Veterans Memorial High School
2028
SS
14.9
2
Diego Castillo
TX
Weslaco High School
2026
RHP
14.6
3
jaime cordova
TX
La Joya Palmview
2026
RHP
13.4
4
Zaine Martinez
TX
Gregory-Portland H S
2027
LHP
-10.9
5
Kaileb Gogo
TX
Calallen H S
2029
LHP
-10.8
Horizontal Break: Outlined on TrackMan’s own website: “... horizontal movement is measured in inches between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.”
STRIKE ZONE RATE%
Rank
Name
State
School
Class
Pos
Zone %
1
Aaron Castillo
TX
WB Ray HS Corpus Christi, TX
2028
C
77 %
2
Joshua Benitez
TX
w.b Ray Texan
2027
RHP
71 %
3
Zaine Martinez
TX
Gregory-Portland H S
2027
LHP
63 %
4
Jonathan Reyes
TX
Veterand Memorial High School
2026
3B
60 %
5
Ayden Saenz
TX
Calallen East El
2028
2B
58 %
Average MLB pitchers throw 62% strikes, and better pitchers throw strikes 65% of the time, or roughly 2:1 strikes to balls.
CURVEBALL
SPIN RATE (AVG.)
Rank
Name
State
School
Class
Pos
Spin Rate (avg)
1
Aaron Castillo
TX
WB Ray HS Corpus Christi, TX
2028
C
2389 rpm
2
John Reyna
TX
Psja Early College H S
2027
RHP
2239 rpm
3
Julian Colsa
TX
Veterans Memorial High School
2026
OF
2237 rpm
4
Stephen Orta
TX
Veterans Memorial
2029
OF
2203 rpm
5
Noah Romero
TX
Calallen H S
2030
1B
2183 rpm
INDUCED VERTICAL BREAK (AVG.)
Rank
Name
State
School
Class
Pos
IVB (avg)
1
Dylan Arriaga
TX
Sinton
2027
LHP
-10.0 in
2
Jonathan Reyes
TX
Veterand Memorial High School
2026
3B
-7.5 in
3
Gael Casiano
TX
United South H S
2030
RHP
-5.2 in
4
Elyjah Hernandez
TX
Ingleside
2030
3B
4.9 in
5
Tommy Vasquez
TX
Calallen H S
2029
2B
-4.6 in
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Stephen Orta
TX
Veterans Memorial
2029
OF
-18.8
2
Alfonso Bueno
TX
Veterans Memorial Early College H S
2026
RHP
-15.5
3
Julian Colsa
TX
Veterans Memorial High School
2026
OF
-14.8
4
Aaron Castillo
TX
WB Ray HS Corpus Christi, TX
2028
C
-14.4
5
Kaileb Gogo
TX
Calallen H S
2029
LHP
11.6
STRIKE ZONE RATE%
Rank
Name
State
School
Class
Pos
Zone %
1
Tommy Vasquez
TX
Calallen H S
2029
2B
100 %
^
Jonathan Reyes
TX
Veterand Memorial High School
2026
3B
100 %
^
jaime cordova
TX
La Joya Palmview
2026
RHP
100 %
2
John Reyna
TX
Psja Early College H S
2027
RHP
66 %
^
Aaron Castillo
TX
WB Ray HS Corpus Christi, TX
2028
C
66 %
3
Kaileb Gogo
TX
Calallen H S
2029
LHP
50 %
^
Julian Colsa
TX
Veterans Memorial High School
2026
OF
50 %
SLIDER
SPIN RATE (AVG.)
Rank
Name
State
School
Class
Pos
Spin Rate (avg)
1
Daxton Williams
TX
London
2028
1B
2434
2
John Reyna
TX
Psja Early College H S
2027
RHP
2315
3
Mason Colsa
TX
Veterans Memorial High School
2028
SS
2190
4
Noah Romero
TX
Calallen H S
2030
1B
2150
5
Joshua Benitez
TX
w.b Ray Texan
2027
RHP
2046
INDUCED VERTICAL BREAK (AVG.)
Rank
Name
State
School
Class
Pos
IVB (avg)
1
Joshua Benitez
TX
w.b Ray Texan
2027
RHP
-8.7 in
2
Alfonso Bueno
TX
Veterans Memorial Early College H S
2026
RHP
6.9 in
3
jaime cordova
TX
La Joya Palmview
2026
RHP
3.8 in
4
Daxton Williams
TX
London
2028
1B
3.5 in
5
John Reyna
TX
Psja Early College H S
2027
RHP
3.5 in
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Daxton Williams
TX
London
2028
1B
-16.6
2
Mason Colsa
TX
Veterans Memorial High School
2028
SS
-16.4
3
Alfonso Bueno
TX
Veterans Memorial Early College H S
2026
RHP
-5.6
4
jaime cordova
TX
La Joya Palmview
2026
RHP
-4.5
5
Noah Romero
TX
Calallen H S
2030
1B
3.3
STRIKE ZONE RATE%
Rank
Name
State
School
Class
Pos
Zone %
1
Ayden Saenz
TX
Calallen East El
2028
2B
81 %
2
John Reyna
TX
Psja Early College H S
2027
RHP
60 %
CHANGEUP
Spin Rate (AVG.)
Rank | Name | State | School | Class | Pos | Spin Rate (avg) |
1 | jaime cordova | TX | La Joya Palmview | 2026 | RHP | 1841 rpm |
2 | Aaron Castillo | TX | WB Ray HS Corpus Christi, TX | 2028 | C | 1559 rpm |
3 | Noah Romero | TX | Calallen H S | 2030 | 1B | 1458 rpm |
4 | Zaine Martinez | TX | Gregory-Portland H S | 2027 | LHP | 1346 rpm |
5 | Dylan Arriaga | TX | Sinton | 2027 | LHP | 1325 rpm |
INDUCED VERTICAL BREAK (AVG.)
Rank | Name | State | School | Class | Pos | IVB (avg) |
1 | Zaine Martinez | TX | Gregory-Portland H S | 2027 | LHP | 10.8 in |
2 | Aaron Castillo | TX | WB Ray HS Corpus Christi, TX | 2028 | C | 8.5 in |
3 | Elyjah Hernandez | TX | Ingleside | 2030 | 3B | 8.2 in |
4 | Noah Romero | TX | Calallen H S | 2030 | 1B | 7.2 in |
5 | jaime cordova | TX | La Joya Palmview | 2026 | RHP | 7.0 in |
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Noah Romero
TX
Calallen H S
2030
1B
-15.8
2
Dylan Arriaga
TX
Sinton
2027
LHP
-10.9
3
Aaron Castillo
TX
WB Ray HS Corpus Christi, TX
2028
C
10.1
4
Zaine Martinez
TX
Gregory-Portland H S
2027
LHP
-8.9
5
jaime cordova
TX
La Joya Palmview
2026
RHP
8.0
+ CLICK HERE for a look at the complete statistics from the event.
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